Measurement

DO
by Donnie Osborn2 views·Updated Mar 31, 2022
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  1. for this video.
  2. We'll be reviewing three separate ways to
  3. calculate the measurement of a quadrilateral,
  4. that being perimeter,
  5. area
  6. or volume.
  7. When determining the measurement of the two D. Or three D. Shape.
  8. It's very important to pay attention to the units of measurement.
  9. Yes,
  10. units can be provided in standard which are inches
  11. feet or yards or metric being centimeter or meter.
  12. This is important to remember that it takes 12" to make one ft
  13. three ft to make one yard
  14. And that it's 100 cm in each
  15. meter.
  16. And when comparing the length
  17. or width of a two dimensional shape,
  18. it's important to make sure that if you're using feet, the other side using feet
  19. or centimeters
  20. and centimeters.
  21. Our first method of measurement
  22. is perimeter
  23. and perimeter is used to determine the distance around a figure
  24. R. G. D. formula page provides two separate
  25. formulas for calculating the parameter of a square or a rectangle.
  26. But it's important to keep in mind that
  27. we are simply just adding
  28. the length of each side
  29. perimeter
  30. is useful
  31. if we were determining the length of binding on a quilt,
  32. the amount of
  33. baseboards needed to finish a room
  34. or if we were putting fencing around our front yard
  35. when finding the perimeter,
  36. you need to find the facts that you need to know to solve it.
  37. Generally. When provided a
  38. diagram,
  39. you are only provided
  40. two
  41. measurement
  42. but in a rectangle we know opposite sides are equal.
  43. So for this unit, provided we have two sides that are 14 ft and two sides that are six ft
  44. to determine the perimeter. You add those sides together
  45. and make sure you use consistent units of measurement.
  46. Okay
  47. we do not have a calculator handy.
  48. 14
  49. plus 14 plus six
  50. plus six.
  51. Press enter
  52. And you get 60.
  53. Your answer would be 60 ft.
  54. Next we have area
  55. which the amount of space taken up by a two dimensional shape.
  56. The G. D. Formula page provides the formulas for rectangle or a parallelogram
  57. being length times with
  58. or base times height
  59. determining areas useful.
  60. If we were
  61. determining how much towel is needed to finish the flooring project,
  62. how much paint would be necessary to paint the rest of the
  63. ram
  64. or if we were going to
  65. put wallpaper up
  66. when finding area
  67. you need to determine the appropriate formula to use.
  68. I encourage you to find the one that makes the most sense to you.
  69. I like length times with
  70. but when you consider
  71. a square
  72. With all four sides,
  73. basic height may be more appropriate.
  74. Okay
  75. we'll take these units and multiply them
  76. by each other.
  77. In the example given on the right hand side we have
  78. the
  79. with three centimeters
  80. And the length of five cm
  81. Multiply three
  82. x 5
  83. which gives us 15
  84. And our answer will be 15 cm square.
  85. Not only are we multiplying three by five,
  86. we are multiplying centimeter by centimeter
  87. which we add the exponents to in our answer
  88. Volume is a unit of measurement for three dimensional shapes
  89. and it concerns the amount of space that the prism occupies.
  90. The G. D.
  91. Formula page provides the volume of a rectangular
  92. prison and the volume of right prisoner.
  93. It's either length times width, times height
  94. or
  95. base time.
  96. The area of the base times height.
  97. We determine area. Base
  98. by multiplying the length times the width.
  99. Volume
  100. is
  101. useful when determining
  102. the mulch necessary to fill fire bed
  103. cement that you need for a carport.
  104. Or if we were going to fill this room with beach balls
  105. when finding volume, you must identify the base
  106. on the prison. Provided
  107. we have
  108. the
  109. the base of it
  110. as
  111. three and 2,
  112. we multiply those together.
  113. It gives us six
  114. And then you multiply that by the height of three
  115. and six times 3 is 18.
  116. If we were to count each of those cubes,
  117. We would see that it would
  118. be composed of eight
  119. teen cubes
  120. when providing your answer, just as we did with area.
  121. If this was centimeters,
  122. we are taking centimeters
  123. and multiplying by centimeters
  124. and multiplying by centimeters.
  125. So our answer would have
  126. And exponents of three.
  127. Mm hmm.